American heavyweight boxing champion Muhammad Ali being helped on with his gloves during a training session at Chris Dundee's 5th Street gym, Miami Beach, March 1971. (Photo by Chris Smith/Popperfoto via Getty Images/Getty Images)
American heavyweight boxing champion Muhammad Ali being helped on with his gloves during a training session at Chris Dundee's 5th Street gym, Miami Beach, March 1971. (Photo by Chris Smith/Popperfoto via Getty Images/Getty Images)